Sand blower for automobiles



July 22 .1924. 1 n e 1,502,214 O n R. T. SHERWIN y y n' SANDy BLOWER FOR MJTOMOBILFS` r y Filed Nov. 26.11923 Patented July 22, 1924.

UNITED STATES PATENT GFFICE.

REDJAR T. SHERWIN, F NEW YORK, N. Y.

BAN'D BLOWER FOR AUTOMOBILES.

Application led November 26, 1923. Serial No. 676,964.

To all whom it may concem:

Be it known that I, REIDAR T. SHERWIN, a citizen of the United States, and a resident of Jackson Hei hts, New York city, county of Queens, an State of New' York, have invented certain new and useful Improvements in Sand Blowers for Automobiles, of which the following is a specification. f

This invention relates to apparatus for use on automotive vehicles, for the purpose of delivering sand yto the ground on the roadway in front of the rear wheels of the vehicle for the purpose of preventing skiddin of the car.

T e object of the present invention is to provide an apparatus of this character, under the instant control of the operator of the vehicle, that will cause the sand blast to be forced on the ground in front of the rear wheels of the vehicle and which is effected by a blower or fan having suitable operating means under control ofthe driver of the car; and also in which arrangement one of the pipes is extended upwardly to prevent escape of the sand when the blower 1s not in-operation.

In the accompanying drawing showing one embodiment of my invention, Figure 1 is a partial plan view of the car chassis.

Fig. 2 is a perspective view showing the blower and the sand box indicating the electric system.

Fig. 3 is a side View enlarged of the blower, partly broken away to. show the interior.

Fig. 4 is a front elevation of the blower, partly broken away to show the interior.

Fig. 5 shows the dischar e pipe.

In the drawing a car c assis is partly shown with the usual mechanism, including an electric battery 2 arranged on cross bars 3 of the frame, on which I also place a sand receptacle or box 4, that preferably hasy a hopper shape bottom 5, connecting with an outlet pipe 6 to discharge the sand. This box may have a hinged lid 7, and also a wire section 8 at the top, so that only fine sand can be placed in the receptacle.

To the rear of this receptacle, I place a suction blower 10 in whpse casing is arranged an electric motor at 11, with the motor shaft extending into the blower to rotate the fan blades 12 in the usual manner. The fan will draw in air at the front opening 13, and discharge the same at an outlet ipe 14 that is part of the casing 10 of the r lower.

The pi e 6 from the receptacle extends into the ront portion of the blower aty 15 which is arranged a short distance below the bottom of the receptacle 4, so that the sand will tend to run by gravity into the lower part of the casing 10.

\ For the purpose of discharging this sand on the ground in front of the rear wheels 16 and 17 ofthe car, I provide a pair of pipes 18 and 19 adapted to receive sand from the blower outlet and direct it in the path of the wheels as the vehicle proceeds. But instead of connecting pipes 18 and 19 directly with the outlet I provide a pipe 14 that extends upwardly and rearwardly from the casing lower portion, as shown. At the upper end 21v of this pipe I connect the discharge pipes 18 and 19, that extend outwardlyr and also downwardly as shown in Fig. 1. The purpose of this upwardly extending pipe 14 is to prevent the sand that would run into the bottom of the casing, from running out of the discharge pi es when the blower is'not in operation, an it is not desired to feed the sand. But as soon v as the blower is started the sand will be easily driven up the pipes 14 then throu h the discharge pipes 18 and 19, and will drawn by suction from the box. B this arrangement of the upwardly exten ing pipe 14, no valve is required to prevent esca e of the sand, as would be necessary if t e discharge extended downwardly from the inlet portion 15 of the blower.

To control the operation of the blower, I

rovide a circuit by wires 22 and 23 extendlng from the motor 11 through the battery 2, and thence to a switch or button 24 at a convenient place for the driver to o rate, such as in the floor as indicated in ig. 1.

In the operation of the device as set forth, the sand will flow by gravity through pipe 6 and the inlet 15 into the casing 10 at its lower portion, and since it can not escape because of the upward direction of the outlet portion 14, no sand will pass into the outlet delivery pipe or pipes. When the fan is rotated'from the motor or other source of power the blades will have direct engagement with the sand in the lower portion of the casin and will drive the sand up towards t e outlet portion 14, at the same time the fan will draw air in throu h the inlet 13 and force it through the out et 14,

um ivm-engage the sand at, thisipmi'o and drive Hit through the outlets A14=and 21 `sand is t started in motion by chanical engagement with the fan blades, before any considerable pressure of airl is@ as long as the fan 1s rotated. But when'the fan is arrested no more'v sand will passthrough the outlet 14, but a portion ywill ,remain inthe lower part of thecasing for very quick action when the ready fan 1s its meproduoed, andas soon as suili'cient current of air passes through the outlet `14 `the sand. will be there ready for immediate act1on. By this means a very quick delivery of sand..

isv provided by both air pressure and blade action that is necessary when the` drlve'r finds that the car is about to skid, and itis sembled on any motor vehicle. By sim 'ly closing the switch the supply of sand is 1nstantly placed on the ground in front and ain started. By this means the l What Igjclaim l1`s:..

at theisides of the rear wheels. y When the.

.driver reaches a dan erous condition off road where skiddin 4is ikely tohappenQthe' Saudis a plied be ore the skiddingV takesplace O viously, but a small quantity ,is v

needed.y and -vwh'en the'fs'witch is vreleased the of. sand "is notl wasted.A

al sandzyreceptacle, agfsubs'tantiallyf drum ',fso that the supply I.

A1 sandingde fceffor"vehiclesfcomprising v, u

shaped blower casing having. its llower part' below vthe level of the receptacle bottom and '45 .in thecasing', means for operating'thefanr. v

lprovided with.anair inlet,I a blade'rotatable a fperipheral-fdelivery.'l extension onl said vcas- .ing extending-l outwardly and .upwardly .therefrom and providedrwith a lateral tubu-y lar terminal `ortion',,:affdeliverypi 'l e lead- 111g vfrom the ottomoflthejreceptace to the ,casing and "opening Vth'rqn'ighila sidewall l thereof adjacent the lower .end-ofthe' peripheral extension, fand a tubular Ameans extendmg` from the tubular terminal to deliver sand to 'desired points,'the;blade fan-having.'

ceptacle.'` r .t v

Signedl atN ew York city, 1N. Y., this 17th day lof November,` 1923.

'its blades"- arranged to intersect the' path o f l sand lowin'gflnto lthe. casing from :the re-v 4 

